Glass-cutter.



M. SIDON.

GLASS CUTTER.

APPLICATION FlLED JULY 15. 1914.

Pat-exited 00t.17,1916.

summer: a

ivraximinmiv' SIIDON, or BROOKLYN, NEW YORK.

GLASS-CUTTER.

Specification of Letters Patent.

Patented Oct. 17, 1916.

Application filed July 15, 1914. Serial No. 851,209.

, T all whom it may concern:

Be it known that I, MAXIMILIAN SIDON,

a citizen of the United States, residing at The cutting wheel, accordingto my invention,

as here shown, is in the form of a single truncated cone with itscutting edge lying in the plane of the base of the cone, and itsopposite face adjacent the wheel supporting portion of thehandle,thereby forming a cutting wheel with a naturally formed cut ting edgewhich may be sharpened from time to time on an oil stone by placing themore extended face (base of the cone) flat against the stone, and byvirtue of the arrangement whereby the holder is on one side only of thewheel, such sharpening may. be done without removing the wheel from itsholder. Cutting wheels so made and supported will last a very long timeby reasonable usage, and, moreover, give the operators using them theadvantage of keeping their cutting wheels just as sharp as the glass tobe cut demands. The form of cutting wheel generally employed in thisclass of tools is in the form of a double truncated cone, the cuttingedge of which lies between the planes of the outer flat faces of thewheel, the said wheel turning, in a slot at one end of its holder.- Suchwheels dull quickly, and owing to the difficulty of sha rpening them inthe holder, are. replaced in said holders, as they become dull, untilthe worn out pin hole in which their supporting spindle is carried makesthis impossible. This sharpening of the wheels, however, is not usuallythe job of the glass cutting operator, and the new wheel often provesunsatisfactory for the glass on hand.

This invention comprises also in combination with the improved form ofcutting wheel and manner of mounting the same, a

form of handle which facilitates the manipulation of the cutter. Suchwheel being more or less offset with respect to its support, may be morereadily held with the plane of the cutting edge perpendicular to theplane of the glass and otherwise man1pu lated, by providing the handlealso with offset supportlng means for the hand of the operator.

Inorder to more fully describe my said invention, reference will be hadto the accompanying drawings, wherein Figure 1, shows in front elevationa glass cutter provided with a form of my improved handle and cuttingwheel; Fig. 2, a side elevation thereof;Fig. 3, a front elevation v of aglass cutter provided with my improved cutting wheel, but without thepressure extensions or arms on'the handle; Fig. 4:,a front elevation ofa glass cutter having a wooden handle provided with pressure extensionsor arms according to my invention, and also with a form of my improvedcuttingwheel; Figs. 5, 6, and 7 fragmentary detail sections showingvarious forms of my improved cutting wheel and manner of supporting thesame, and Fig. 8, a detail top plan view of the pressure extensionmember made in a form to be clamped to the handle.- I

Referring first to the form of my invention as shown in Figs. 1 and 2, 1indicates the handle of the glass cutter; 2, pressure extensions orfinger rests consisting of lateral arms rigid on the handle 1; 3, thewheel supporting extension, and 4, the cutting wheel. In this form ofthe tool the handle 1, pressure extensions 2, and wheel supportingextension 3, are all made in one piece, preferably of cast metal. Thewheel supporting extension 3 may be of substantially the same form ascommonly employed in this class of tools except as to that portionimmediately EtdJZICGIlt the cutting-wheel. .In the common form of glasscutter, this extension is slotted, and thewheel is supported upon a pincarried by the extensions on each side of the wheel, the wheel itselfbeing inthe form of a double truncated cone with the cutting.

edge formed by the bases of the two cones.

According to my invention, as here shown,

r be set on an angle, as the wheel 4P, shown with the face of the wheelopposite its cutting edge or base, adjacent one side of the extension 3,which latter may be cut away as at 10 to bring the cutting edge of thewheel more nearly under the central longitudinal axis of the handle. Theextension 3 may also be provided with the usual marginal slots 11.

My improved cutting wheel may be made solid, as'the wheel 4*, shown inFig. 5, but is preferably dished or cupped as shown for example in Figs.2, 6 and 7, so as to allow the entire cutting edge to be laid fiatagainst a plane surface as that of an oil stone.

Instead of mounting the cutting wheel with the plane of its cutting edgeparallel to the adjacent side of extension 3, as shown in Figsal, 2, 3,4L, 5, and 7 the wheel may in Fig. 6. The latter figure also shows analternative form of pin for carrying the wheel. In this case, the headof the pin and bearing surface are combined in a coneshaped portion 9.

In the tool shown in Fig. 3, the handle proper 1 is of the common form,but the cutting wheel and manner of mounting it are of novelconstruction, being the same as shown in Figs. 1 and 2.

In Fig. 4:, I have shown a tool embodying the same form of cutting wheeland manner of mounting the same as shown in Figs. 1, 2 and 3, and alsoembodying a handle provided with my improved pressure extensions. Thehandle 1 in this case, however, is of wood attached to a metal wheelsupporting extension 3, and the pressure extensions or arms are formedby a pin 2 passed transversely through the handle, but held frictiontight therein.

In Fig. 8, I have shown a form of support or offset for the handle,comprising a yoke 2 having arms 2 and a set screw 2 adapted to beslipped on the handle of the tool and clamped thereto, and which may besubstituted forthe supports 2 or 2 herein shown.

Other modifications of my invention may be made without departing fromthe spirit thereof.

l Vhat I claim is 1. As an article of manufacture, a glass cutter formanual use comprising a holder having a handle, a cutting wheel thematerial of which lies wholly on one side of its cutting edge, and meanssupporting said wheel on said holder with the plane of the cutting edgeof said wheel wholly to one side of said holder, whereby the face of thewheel in the plane of its cutting edge and extending transversely of itsaxis of rotation may be laid fiat against a plane surface,substantiallly as described.

2. As an article of manufacture a glass cutter for manual use having acutting wheel in the form of a single truncated cupped cone the base ofwhich coincides with the cutting edge of the wheel, a holder having ahandle, and means wholly to one side of the plane of the base of thecone rotatably supporting said wheel with its cutting edge wholly to oneside of said holder, whereby the face of the wheel constituting the baseof the cone may be placed fiat against a plane surface, substantially asand for the purpose set forth.

3. As an article of manufacture, a glass cutter for manual usecomprising a holder having a handle provided with one or more lateralhand supporting arms, a cutting wheel the material of which lies whollyon one side of its cutting edge, and means supporting said wheel on saidholder with the plane of the cutting edge of said wheel wholly to oneside of said holder, whereby the face of the wheel in the plane of itscutting edge and extending transversely of its axis of rotation may belaid fiat against a plane surface, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

MAXIMILIAN SIDON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

Washington, I). C.

